John E Barnes MD Inc

John E Barnes MD Inc is a healthcare organization registered as Neurology Physician in Mt View, CA, holding Type 2 (organization) NPI 1427247527 since 2007. The authorized official on file is John Barnes, MD/Owner.

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NPI	1427247527
Entity type	Organization (Type 2)
Legal business name	John E Barnes MD Inc
Practice address	2500 HOSPITAL DRIVE, BUILDING 2, Mt View, CA, 94040
Phone	6509620236
Fax	6509628279
Enumeration date	2007-10-15
Last updated in NPPES	2007-10-15

Authorized official

Name	John Barnes
Title	MD/Owner
Phone	6509620236

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
2084N0400X	Neurology Physician	Primary	G22446	CA

Other identifiers

Identifier	Type	State	Issuer
00G224460	Medicaid	CA	—

Copy-ready billing details

Provider: John E Barnes MD Inc
NPI: 1427247527
Taxonomy: 2084N0400X (Neurology Physician)
Address: 2500 HOSPITAL DRIVE, BUILDING 2, Mt View, CA, 94040

Providers at this address

NPI	Name	Type	Specialty	Location
1306810197	Mary Halpin	Individual	Pediatrics Physician	Mountain View, CA
1356415137	Salvatore Tuzzo	Individual	Psychiatry Physician	Mountain View, CA
1962774679	Suneetha Maddineni	Individual	Internal Medicine Physician	Mountain View, CA

Verify this record

Cross-check NPI 1427247527 against the authoritative CMS record: view John E Barnes MD Inc on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-10-15. Verify at npiregistry.cms.hhs.gov.

Where is John E Barnes MD Inc located?

The practice location on file with NPPES is in Mt View, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-10-15.